What should I do if I forgot my login password? WINXP!!

Tip 1: As you know, the password of Windows XP is stored in the SAM file under the Winnt System32 Config where the system is located, and the SAM file is the password database file. When we log in to the system, the system will automatically check with the SAM in the config, if we find that the password and username are all consistent with the encrypted data in the SAM file, you will log in smoothly; If there is an error, you cannot log in.

That being the case, our first method came up: delete the SAM file to recover the password.

If you don't have to worry about any of the system cards and have two operating systems, you can boot your computer with another operating system that can access NTFS, or you can use another tool to access NTFS even if you don't have both systems installed. Then delete the SAM file in the C: Winnt System32 config directory and restart.

At this point, the administrator does not have a password. Of course, it is also a good idea to remove the hard drive and replace it with another machine to delete SAM files.

Tip: Windows NT 2000 XP uses the security manager (SAM) mechanism for the security management of user accounts, and the management of the security manager pair is carried out through the security identity, which is created at the same time when the security identity is created, and once deleted, the security identity is also deleted at the same time. Security identities are unique, and even if they are the same username, they are completely different each time they are created.

As a result, once a piece is deleted, its security identity no longer exists, and even if it is rebuilt with the same username, it will be given a different security identity and will not retain the original permissions.

The Security Manager is the %systemroot% system32 config sam file. The SAM file is a Windows NT 2000 XP user account database, and all user logins and passwords are stored in this file.

Tip 2: Use Off1ine NT Password & Registry Editor. With this software, you can make a Linux boot disk, which can access the NTFS file system, so it can support Windows 2000 XP well.

Using one of the floppy disks, ntpasswd, a tool running on linux, will solve the problem. And it is possible to read the registry and rewrite the password. The method to use is simple, just follow the prompts after its launch step by step.

Here, it's recommended that you use Express Mode, which lists users for you to choose which user's password to change. By default, users in the admin group will automatically find the user whose administrator name has been replaced, which is very convenient.

DOS Boot Go to the system directory (usually C: Windows or C: Winnt), and use the cd command to enter the system32 config subdirectory, and then.

Delete the file named "SAM", if there is "also delete it", then start Windows, enter the "administrator" password in the login box and do not fill it in, and then press enter OK

Or find a WinKey software to try.

Force deletion of the password database file.

Boot the system with the DOS boot disk, enter the Windows SYETEM32 config directory of the system disk, delete the SAM file and reboot it to log in with the administrator account (the password is empty) (it needs to be available under the system disk FAT32).

If you have not set the administrator password, you can press Ctrl+Alt+Del twice on the screen where you selected the user name.

If the administrator password is empty, you can enter.

I format the C drive and reinstall it. I also vaguely remember which part of the desktop could be discharged, so that the password it stored was lost, and then it was OK, but I forgot which part was discharged.

It's very simple, open the case, pull out the button battery on the motherboard, after a minute, install it again, and then turn it on, it's good, absolutely no problem, go quickly.

Just delete the SAM file

Can you try this password ---administrator)?

This is the administrator password.